LDR Sensor Project Overview This project demonstrates a simple light-dependent resistor (LDR) sensor circuit built using basic electronic components such as an LDR, transistor, resistor, and a ...

Here’s a circuit diagram that can be switched as the light and dark sensor… This example uses an LM358 dual-operational amplifier IC. As per the above circuit, the output of the LDR-resistor network ...

Circuit Diagram LDR Sensor: Connect one end to the 3.3V pin and the other end to the A0 (analog input) pin with a pull-down resistor to GND. LED: Connect the positive leg (anode) to D1 (digital output ...

Arduino BH1750 Ambient Light Sensor Circuit Diagram. The circuit diagram to connect BH1750 Light sensor with Arduino is shown below.. I2C communication pins SDA and SCL of BH1750 are connected to ...